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How to Fix the ERR_SPDY_PROTOCOL_ERROR in Chrome (5 Methods)

Not accessing a particular website can be a frustrating experience, especially when you are faced with an error message err_spdy_protocol_error that you don’t understand. A common problem that can occur when browsing the Internet is, for example, the “ERR_SPDY_PROTOCOL_ERROR.”

While this message may seem intimidatingly technical and complicated at first, it is pretty simple. Understanding what the err_spdy_protocol_error error means can significantly simplify the solution. Once you know what you are dealing with, you can use some quick techniques to deal with it.

In this post, we explain what the SPDY protocol is in Google Chrome and what ERR_SPDY_PROTOCOL_ERROR means.

Then, we will examine five methods that you can use to correct this err_spdy_protocol_error error. Let’s start!

Also Read: Error in File file rt Cannot Open the Connection – Fixed Error Message

Introduction to SPDY in Google Chrome

Before discussing what the ERR_SPDY_PROTOCOL_ERROR message means and how to fix it, it is helpful to understand what SPDY is first. In short, SPDY is a Google Chrome network protocol.

SPDY was developed to increase the security of HTTP-enabled websites.

HTTP also comes under a web protocol that enables communication and connectivity between browsers and servers.

The “s” in SPDY stands for “fast” and reflects that the protocol is designed to increase website load times and reduce latency.

Some additional benefits of SPDY are:

  • Lower bandwidth usage
  • Improved performance
  • Better user experience (UX)
  • SPDY modifies web traffic and data after it leaves the server, optimizing bandwidth usage in the process. The result can be a faster experience for users.
  • It can also help solve some common HTTP-related problems. For example, HTTP gets only one item at a time, but SPDY gets multiple downloads.

Understand ERR_SPDY_PROTOCOL_ERROR in Chrome

Some of the error messages you encounter while browsing the Internet indicate a problem with the website you are trying to access. In other cases, they show a problem with the operating system you are using.


The best news is that there is no problem with the website that caused the error. It also reduces the root of the problem and brings you that much closer to the solution.

The bad news is that there is something wrong with the browser storage you are using. This problem can affect not only the website you are currently using but also others in the future.

As mentioned above, the SPDY protocol is native to Chrome engine. Therefore, the error ERR_SPDY_PROTOCOL_ERROR is a Chrome-specific issue.

It will not appear in other browsers (although most other browsers have their version of this error message).

If you see the ERR_SPDY_PROTOCOL_ERROR error indicating that the web page you are trying to visit is not available, it means that the browser no longer supports the SPDY protocol.

It most often occurs when trying to visit a website owned by Google, such as Gmail or YouTube. However, this is also possible on unrelated websites information.

Also Read: [pii_email_a861e05f6b3ccd51b36b] Error Code Solved in 4 Ways

How To Fix ERR_SPDY_PROTOCOL_ERROR In Chrome (5 Methods)

Now you know what the ERR_SPDY_PROTOCOL_ERROR message is, it’s time to learn how to fix it. Also, let’s take a look at five methods you can use.

  • Method 1: Refresh and restart your browser
  • Method 2: use Google Chrome’s incognito mode
  • Method 3: Clear your browser cache
  • Method 4: flush the SPDY bags
  • Method 5: delete DNS and renew IP

Please note that you can fix this problem through Chrome as it is a Chrome-specific problem. Attempting the following steps in a different browser will not be effective.

Method 1: Refresh and Restart Your Browser

The first step you can take to resolve the ERR_SPDY_PROTOCOL_ERROR message is to refresh your browser and restart it. It may sound simple, but sometimes it is all you need to make the irritating message go away and give you access to the website you want to visit.

To do this:

  • Quit your browser.
  • Open it again and try to access the same website.
  • Note that this is a quick fix, and even if the error is temporarily resolved, you may want to investigate the underlying problem using some of the methods below.
  • If you still encounter ERR_SPDY_PROTOCOL_ERROR after restarting your browser, you may need to update it.


To check that your Chrome browser is up to date, click the three vertical dots in the top right corner of your browser. Then go to Help> About Google Chrome:

It will take you to an “About” page. Also, it will tell you which version of Chrome you are using and start updating the browser if necessary.


When the process is complete, click the Re-launch button.

Then try revisiting the website to see if the problem is resolved. Otherwise, you’ll want to move on to the following method.

Method 2: use Google Chrome’s Incognito Mode

Another simple but often effective solution is to use your browser in “incognito” mode.

To do this, select your browser menu and click on New Incognito Window:

You can also select or use Ctrl + Shift + N on your keyboard to get here. Once in incognito mode, enter the URL of the site you want to access in the search bar.

If the problem persists, move on to the following method.

Method 2: use Google Chrome's Incognito Mode

However, once that is fixed, you can access the website. Note, however, that like restarting your browser, this is only a temporary solution. So read on to find some ways to fix the underlying cause of the failure.

Method 3: Clear Your Browser Cache

If the webpage is still unavailable even after restarting your browser and using incognito mode, you can try clearing your browser’s cache.

Go to Settings in Chrome, scroll down, and click the Advanced link at the bottom of the page.

Also, for err_spdy_protocol_error this will open a drop-down menu in the corner with different settings. Select Clear Browsing Data.

It will then direct you to a new window with two tabs: Basic and Advanced.

We recommend sticking to the Basic tab. This way, the browser will remember your passwords, fill in the data automatically, etc.

Just select Clear Data and let the browser run for a few moments.

Once the whole process is complete, you can restart the browser and see if the error still appears.

Method 4: Flush the SPDY Bags

Method 4: Flush the SPDY Bags

Another solution that can fix the ERR_SPDY_PROTOCOL_ERROR is to clear the “pockets of SPDY.” To do this, open your Chrome browser for [pii_email_cbd448bbd34c985e423c] and type or copy the following into the URL bar:

Then, press ENTER key, and it brings you to a page that looks like this.

Click on Sockets in the left navigation area.

There, click the Flush Socket Pool button. Then try to visit the website that generated the error [pii_email_e6685ca0de00abf1e4d5] to see if the problem is resolved. If not, there is another method that you can try.

Method 5: Clean DNS and Renew IP

If you try all methods and you’re still getting the ERR_SPDY_PROTOCOL_ERROR message, the problem may be with your Domain Name System (DNS). To flush your DNS, you must first open the command prompt.

Also, in Windows, you can do this using the Win + R keys, then typing “cmd” in the field that appears and press Enter. However for spdy protocol error fix, you can also open the Start menu and type “command prompt” in the search bar. Then select Run as administrator:

On a Mac, you can also access the command prompt through Terminal. To do this, open Finder and click Applications in the left pane.

Next, you can scroll down and click on the Utility folder followed by Terminal.

Our detailed guide has all the details on clearing your DNS cache based on your operating system and browser.

After that err_spdy_protocol_error task is done, restart browser and revisit the site in question to check if the problem has been resolved.

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Google Chrome is a highly trending browser with a whopping 73% of the browser market share, and for the most part, it works flawlessly. However, you can encounter an ERR_SPDY_PROTOCOL_ERROR message that prevents you from accessing a particular website from full time to time.

This problem err_spdy_protocol_error is frustrating but can be solved without much technical knowledge.

In particular for spdy protocol error fix, there are five methods you can use to correct the ERR_SPDY_PROTOCOL_ERROR message from Chrome:

  • Update and restart your Google Chrome browser.
  • Use the incognito mode of Google Chrome to access the website.
  • Clear your browser’s cache.
  • Empty the SPDY jacks from your Chrome browser.
  • Clear your DNS cache and renew the IP.

Final Verdict

You may receive an err_spdy_protocol_error error that may have issues. However, you would no longer be concerned about these errors if you followed the methods above. For spdy protocol error fix, these strategies should be practiced one at a time. If the first method fails, switch to the second method. If you enjoyed this tutorial, we would love your support.

Also Read: [pii_email_ba46bbe553db68888fd4] Error Code Solved in 4 Ways

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